Further topics
•
4.4.5
Cascading
Several safety switches can be connected using cascading. The connected devices act
like one device.
Structure of a cascade
A cascade can be structured as follows:
•
Connecting the safety switches with M12 plug connectors, terminating the cas‐
cade with an end connector (only for variant with 2 M12 plug connectors)
•
Connecting the safety switches with special T-connectors, terminating the cascade
with an end connector (only for variant with 8-pin M12 plug connector)
DANGER
Bypassing the protective device
The dangerous state may not be stopped in the event of non-compliance.
1.
If a cascade is created with directly connected safety switches, the connecting
cable must be mounted so that a safety switch cannot be easily jumpered; e.g.,
cover plug connector or protect against access with additional means (e.g., protec‐
tive cover with disposable screws).
2.
If a cascade is created with T-connectors, the connecting cable must be mounted
so that individual T-connectors (and therefore a safety switch) cannot be easily
jumpered.
Both connection methods can be combined as desired.
PROJECT PLANNING
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8020169/ZJN1/2018-03-21 | SICK
O P E R A T I N G I N S T R U C T I O N S | MLP1
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Subject to change without notice
